Soulfly is the self-titled debut album by the metal band Soulfly, released on April 21, 1998 through Roadrunner Records. The record was released in memory of frontman Max Cavalera's murdered stepson and the first album featuring Cavalera since leaving Sepultura two years prior. Both CDs have the message In Loving Memory Dana printed across them. The album has been certified gold by the RIAA.

The breakdown riff in "Tribe" originated during Max's time still in Sepultura - most likely created during on-the-road demo jams during the Roots tour though evidently never recorded in any complete demo form. As such, the riff was also used by Sepultura members Andreas Kisser and Igor Cavalera as the main riff to 'Walkman' during their scoring of the movie No Coracao Dos Deuses, recorded the same year as Soulfly's 'Tribe'.

It was so hard to start over, having been in Sepultura for so long. In fact, it was harder getting Soulfly going than it was getting Sepultura started. Coming into a whole new situation underneath the shadow of Roots was a huge challenge for me, and most people thought I was nuts. Plus, we made a conscious effort not to sound like Sepultura. My choice of musicians took me away from straight metal and into a vibe that embraced a lot more, while still being heavy. Part of the magic was working with some of my all-time favourite Brazilian musicians and that really pushed me to write some great and some very different sounding music. Eye For an Eye is still my favourite, man, and I also like Tribe. That's like an anthem for all metalheads.[6]

^Prato, Greg. "Soulfly - Soulfly". AllMusic. Retrieved November 9, 2014. Like his last release with Sepultura, the superb Roots, experimentation (Brazilian tribal drumming/rhythms, samples, unearthly sound effects, etc.) is a catalyst here on Soulfly, but gut-wrenching heavy metal is the foundation for almost all of the tracks.

1.
Album
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Album, is a collection of audio recordings issued as a single item on CD, record, audio tape, or another medium. Albums of recorded music were developed in the early 20th century, first as books of individual 78rpm records, vinyl LPs are still issued, though in the 21st century album sales have mostly focused on compact disc and MP3 formats. The audio cassette was a format used from the late 1970s through to the 1990s alongside vinyl, an album may be recorded in a recording studio, in a concert venue, at home, in the field, or a mix of places. Recording may take a few hours to years to complete, usually in several takes with different parts recorded separately. Recordings that are done in one take without overdubbing are termed live, the majority of studio recordings contain an abundance of editing, sound effects, voice adjustments, etc. With modern recording technology, musicians can be recorded in separate rooms or at times while listening to the other parts using headphones. Album covers and liner notes are used, and sometimes additional information is provided, such as analysis of the recording, historically, the term album was applied to a collection of various items housed in a book format. In musical usage the word was used for collections of pieces of printed music from the early nineteenth century. Later, collections of related 78rpm records were bundled in book-like albums, the LP record, or 33 1⁄3 rpm microgroove vinyl record, is a gramophone record format introduced by Columbia Records in 1948. It was adopted by the industry as a standard format for the album. Apart from relatively minor refinements and the important later addition of stereophonic sound capability, the term album had been carried forward from the early nineteenth century when it had been used for collections of short pieces of music. Later, collections of related 78rpm records were bundled in book-like albums, as part of a trend of shifting sales in the music industry, some commenters have declared that the early 21st century experienced the death of the album. Sometimes shorter albums are referred to as mini-albums or EPs, Albums such as Tubular Bells, Amarok, Hergest Ridge by Mike Oldfield, and Yess Close to the Edge, include fewer than four tracks. There are no rules against artists such as Pinhead Gunpowder referring to their own releases under thirty minutes as albums. These are known as box sets, material is stored on an album in sections termed tracks, normally 11 or 12 tracks. A music track is a song or instrumental recording. The term is associated with popular music where separate tracks are known as album tracks. When vinyl records were the medium for audio recordings a track could be identified visually from the grooves

2.
Malibu, California
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Malibu is a beach city in Los Angeles County, California, situated 30 miles west of Downtown Los Angeles. Known for its Mediterranean climate, a 21-mile strip of the Malibu coast incorporated in 1991 into the City of Malibu, the area is known for being the home of Hollywood movie stars, people in the entertainment industry, and other affluent residents. As of the 2010 census, the city population was 12,645, signs around the city proclaim 27 miles of scenic beauty, referring to the historical 27-mile Malibu coast spanning from Tuna Canyon west to Point Mugu in Ventura County. Most Malibu residents live within a few hundred yards of Pacific Coast Highway, for many residents of the unincorporated canyon areas, Malibu has the closest commercial centers and are included in the Malibu zip codes. The city is bounded by Topanga to the east, the Santa Monica Mountains to the north, the Pacific Ocean to the south. Nicknamed the Bu by surfers and locals, beaches along the Malibu coast include Surfrider Beach, Zuma Beach, Malibu Beach, Topanga Beach, Point Dume Beach, County Line and they named it Humaliwo or the surf sounds loudly. The citys name derives from this, as the Hu syllable is not stressed, explorer Juan Rodríguez Cabrillo is believed to have moored at Malibu Lagoon, at the mouth of Malibu Creek, to obtain fresh water in 1542. The Spanish presence returned with the California mission system, and the area was part of Rancho Topanga Malibu Sequit—a 13 and that ranch passed intact to Frederick Hastings Rindge in 1891. Few roads even entered the area before 1929, when the state won another court case, by then May Rindge was forced to subdivide her property and begin selling and leasing lots. In 1926, in an effort to selling land to stave off insolvency. At its height, Malibu Potteries employed over 100 workers, and produced decorative tiles which furnish many Los Angeles-area public buildings, the factory, located one-half mile east of the pier, was ravaged by a fire in 1931. Although the factory reopened in 1932, it could not recover from the effects of the Great Depression. A distinct hybrid of Moorish and Arts and crafts designs, Malibu tile is considered highly collectible. Fine examples of the tiles may be seen at the Adamson House and Serra Retreat, the unfinished building was sold to the Franciscan Order in 1942 and is operated as a retreat facility, Serra Retreat. It burned in the 1970 fire and was using many of the original tiles. Most of the Big Rock Drive area was purchased in 1936 by William Randolph Hearst and he sold the lower half of his holdings there in 1944 to Art Jones. Jones was one of the prominent early realtors in Malibu, starting with the leases of Rindge land in Malibu Colony. He was also the owner/part-owner of the Malibu Inn, Malibu Trading Post, mcAnany Way is named after him

3.
Nu metal
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Nu metal is a form of alternative metal that combines elements of heavy metal music with elements of other music genres such as hip hop, alternative rock, funk and grunge. Nu metal bands have drawn elements and influences from a variety of musical styles, Nu metal rarely features guitar solos, the genre is heavily syncopated and based on guitar riffs. Many nu metal guitarists use seven-string guitars that are down-tuned to play a heavier sound, DJs are occasionally featured in nu metal to provide instrumentation such as sampling, turntable scratching and electronic backgrounds. Vocal styles in nu metal include singing, rapping, screaming and growling, Nu metal is one of the key genres of the New Wave of American Heavy Metal. Nu metal became popular in the late 1990s with bands and artists such as Korn, Limp Bizkit, Slipknot, many heavy metal fans have criticized nu metal, and do not regard it as true heavy metal. Many nu metal musicians have rejected the nu metal label and also have rejected being labeled as heavy metal, Nu metal is also known as nü-metal and aggro-metal. It is a subgenre of alternative metal, MTV states that the early nu metal group Korn arrived in 1993 into the burgeoning alternative metal scene, which would morph into nü-metal the way college rock became alternative rock. Stereogum has similarly claimed that nu metal was a outgrowth of the Lollapalooza-era alt-metal scene. Nu metal merges elements of metal music with elements of other music genres such as grunge, hip hop, funk. Nu metal bands also are influenced by and use elements of genres of metal music such as death metal, rap metal, groove metal, funk metal, alternative metal. Some nu metal bands such as Static-X and Dope made nu metal music elements of industrial metal. Nu metal music is heavily syncopated and is based mostly on guitar riffs, mid-song bridges and a general lack of guitar solos contrasts it with other genres of heavy metal. N its efforts to tune down and simplify riffs, nu-metal effectively drove a stake through the heart of the guitar solo. Another contrast with other metal genres is nu metals emphasis on rhythm, rather than on complexity or mood. The wah pedal is occasionally featured in nu metal music, Nu metal guitar riffs occasionally are similar to death metal guitar riffs. Nu metal bassists and drummers are often influenced by funk and hip hop, respectively, blast beats, which are common in heavy metal subgenres such as black metal and death metal, are extremely rare in nu metal. sound a Mack truck being crushed by a collapsing skyscraper. Some nu metal bands use seven-string guitars that are generally down-tuned, likewise, some bass guitarists use five-string and six-string instruments. Bass guitar-playing in nu metal often features an emphasis on elements such as slap bass, a percussive style of playing in which the thumb slaps the low strings

4.
Heavy metal music
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Heavy metal is a genre of rock music that developed in the late 1960s and early 1970s, largely in the United Kingdom and the United States. Heavy metal lyrics and performance styles are associated with aggression. The first heavy metal such as Led Zeppelin, Black Sabbath. During the mid-1970s, Judas Priest helped spur the evolution by discarding much of its blues influence, Motörhead introduced a punk rock sensibility. Beginning in the late 1970s, bands in the new wave of British heavy metal such as Iron Maiden, before the end of the decade, heavy metal fans became known as metalheads or headbangers. During the 1980s, glam metal became popular with such as Mötley Crüe. Since the mid-1990s popular styles have further expanded the definition of the genre and these include groove metal and nu metal, the latter of which often incorporates elements of grunge and hip hop. Heavy metal is characterized by loud distorted guitars, emphatic rhythms, dense bass-and-drum sound. Metal subgenres variously emphasize, alter, or omit one or more of these attributes, the typical band lineup includes a drummer, a bassist, a rhythm guitarist, a lead guitarist, and a singer, who may or may not be an instrumentalist. Keyboard instruments are used to enhance the fullness of the sound. Deep Purples Jon Lord played an overdriven Hammond organ, in 1970, John Paul Jones used a Moog synthesizer on Led Zeppelin III, by the 1990s, in. almost every subgenre of heavy metal synthesizers were used. The electric guitar and the power that it projects through amplification has historically been the key element in heavy metal. The heavy metal guitar sound comes from a use of high volumes. Guitar solos are an element of the heavy metal code. That underscores the significance of the guitar to the genre, most heavy metal songs featur at least one guitar solo, which is a primary means through which the heavy metal performer expresses virtuosity. One exception is nu metal bands, which tend to omit guitar solos, with rhythm guitar parts, the heavy crunch sound in heavy metal. Palm muting the strings with the hand and using distortion. Palm muting creates a tighter, more sound and it emphasizes the low end

5.
Sepultura
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Sepultura is a Brazilian heavy metal band from Belo Horizonte. Sepultura has had changes in its lineup since its formation, with Max and Igor Cavalera departing in 1996 and 2006. Sepulturas current lineup consists of vocalist Derrick Green, guitarist Andreas Kisser, bassist Paulo Jr. since Igor Cavaleras departure in 2006, there have been no original members left in the band. Paulo Jr. who has been a member of Sepultura since 1985, is the member to appear on every release. Kisser, who replaced Jairo Guedz in 1987, has played on all of the studio albums. Sepultura has released fourteen studio albums to date, the latest being Machine Messiah and their most successful records are Arise, Chaos A. D. and Roots. Sepultura was formed in 1984 in Belo Horizonte, the city of Minas Gerais. Gracilianos death deeply affected his sons, inspiring them to form a band after Max heard the album Black Sabbath Vol.4 the very same day. They chose the band name Sepultura, the Portuguese word for grave and they would travel to a record shop in São Paulo that mixed tapes of the latest records by American bands. Their listening habits changed dramatically after being introduced to Venom, as Igor Cavalera put it, The Cavalera brothers started listening to bands such as Hellhammer/Celtic Frost, Kreator, Sodom, Megadeth, Exodus and Exciter. They also had influences on Brazilian metal from bands like Stress, Sagrado Inferno, by 1984, they had dropped out of school. After his departure, Max took over the vocal duties, Jairo Guedes was invited to join the band as lead guitarist. After about a year of performing, Sepultura signed to Cogumelo Records in 1985, later that year, they released Bestial Devastation, a shared EP with fellow Brazilian band Overdose. It was self-produced and recorded in just two days, the band recorded their first full-length album, Morbid Visions, in August 1986. It contained their first hit, Troops of Doom, which gained media attention. The band then decided to relocate to the city of São Paulo. In early 1987, Jairo Guedes quit the band, Guedes was replaced by São Paulo-based guitarist Andreas Kisser, and they released their second studio album, Schizophrenia, in 1987. The album reflected a change towards a more thrash metal-oriented sound

6.
Limp Bizkit
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Limp Bizkit is an American rap rock band from Jacksonville, Florida, formed in 1994. Their lineup consists of Fred Durst, Sam Rivers, John Otto and their music is marked by Dursts angry vocal delivery and Borlands sonic experimentation. Borlands elaborate visual appearance, which includes face and body paint, masks and uniforms, the band has been nominated for three Grammy Awards, have sold 40 million records worldwide and won several other awards. Borland left the group in 2001, but Durst, Rivers, Otto and Lethal continued to record and tour with guitarist Mike Smith. Following the release of their album, Results May Vary, Borland rejoined the band and recorded The Unquestionable Truth with Durst, Rivers, Lethal and they are currently recording their seventh studio album, Stampede of the Disco Elephants. Fred Durst grew up in Jacksonville, Florida, where he took an interest in breakdancing, hip hop, punk rock and he began to rap, skate, beatbox and deejay. While mowing lawns and working as a tattoo artist, he developed an idea for a band that combined elements of rock and hip hop. Durst played with three bands, Split 26, Malachi Sage, which were unsuccessful, and 10 Foot Shindig. Durst told Sam Rivers, the bassist for Malachi Sage, You need to quit this band and start a band with me thats like this, rappin and rockin. Rivers suggested that his cousin, John Otto, who was studying jazz drumming at the Douglas Anderson School of the Arts and playing in local avant garde bands, Durst, Rivers and Otto jammed and wrote three songs together, and Wes Borland later joined as a guitarist. Durst named the band Limp Bizkit, because he wanted a name that would repel listeners, according to Durst, The name is there to turn peoples heads away. A lot of people pick up the disc and go, Limp Bizkit and those are the people that we dont even want listening to our music. Other names that were considered by Durst included Gimp Disco, Split Dickslit, Bitch Piglet, every record label that showed an interest in the band pressured its members to change its name. Limp Bizkit developed a following in the underground music scene, particularly at the Milk Bar. The bands local popularity was such that Sugar Ray, who had a label contract. Milkbar owner, Danny Wimmer, stated that Limp Bizkit had the biggest draw for a local band and they went from playing ten people to eight hundred within months. Fred was always marketing the band and he would go to record stores and get people involved, he was in touch with high schools. However, the band knew that to achieve success, they would have to distinguish themselves in their live performances

7.
Deftones
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Deftones is an American alternative metal band from Sacramento, California, U. S. Formed in 1988, the band was founded by Chino Moreno, Stephen Carpenter, Abe Cunningham, during the groups first five years, the bands lineup changed several times, but stabilized in 1993 when Cunningham rejoined the group after his departure in 1990. Cunningham replaced John Taylor, who had replaced Garcia after he had switched to drums in 1990, the lineup remained stable for fifteen years, with the exception of keyboardist and turntablist Frank Delgado being added in 1999. In 2008, Cheng was involved in an accident that ended his stint with Deftones. He has been replaced by Sergio Vega, the band is known as one of the most experimental groups to have come from the alternative metal music scene. Deftones have released eight albums since their inception, after the lineup settled in 1993, the band secured a recording contract with Maverick Records, and subsequently released their debut album, Adrenaline, in 1995. Promoting the album by touring exhaustively with other bands in the scene and their sophomore album, Around the Fur, was released in 1997. The album and its singles reached chart positions, and the album was the bands first to receive certification from the RIAA, the band found even further success with their third album, White Pony, in 2000. It showed a transition away from the earlier sound into a more experimental direction. Its lead single, Change, is the groups most commercially successful single, White Pony was the bands first of three albums to be certified platinum in the United States. Their self-titled fourth album was released in 2003, while the groups mainstream success continued, sales proved to be lackluster compared to White Pony. The follow-up, Saturday Night Wrist, was released in 2006 after a falling out within the band due to creative tensions. Its completion was delayed by personal issues within the band. In 2008, while Deftones were working on an album tentatively titled Eros, as a result, he was left in a minimally conscious state until his death in 2013 of cardiac arrest. During that time, Deftones halted production on Eros and released Diamond Eyes and Koi No Yokan in 2010 and 2012 respectively, in 2016, the band released a followup, titled Gore. When Stephen Carpenter was 15 years old, he was hit by a car while skateboarding, confined to a wheelchair for several months, he began teaching himself guitar by playing along to bands such as Anthrax, Stormtroopers of Death and Metallica. Carpenter, Cunningham and Chino Moreno were friends from their childhood, All three went to McClatchy High School in Sacramento and remained friends through the citys skateboarding scene. While Carpenter was a fan of metal, Moreno was also interested in hardcore punk bands such as Bad Brains and post-punk

8.
Andreas Kisser
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Andreas Rudolf Kisser is a Brazilian guitar player, songwriter and producer. He is most known for being the player for the metal band Sepultura. He has been featured on every Sepultura release since their second album, additionally, Kisser has also been involved in other bands such as the rock supergroup Hail. Sexoturica and, more recently, De La Tierra, Kisser was born on August 24,1968 to a Slovene mother, from Maribor, Slovenia, and a German father in São Bernardo do Campo, a municipality in the state of São Paulo. His father was an engineer who worked for Mercedes-Benz Brazil and his mother was a German teacher. At an early age, Kisser showed an interest in music and he was 10 when he started to listen to his parents records of The Beatles, Roberto Carlos and Tonico & Tinoco. He received his first acoustic guitar from his grandmother and later won a guitar at a game of Bingo. In his early adolescence Kisser started to play acoustic guitar first learning basic chords from the Brazilian popular music repertoire, a friend then introduced Kisser to hard rock with bands like Queen and Kiss which had a great influence on him. In 1983 he went to see Kiss live in São Paulo, Kisser eventually got his first electric guitar, a Giannini-Supersonic, and an overdrive pedal. Some of his major influences consisted then of Eric Clapton, Jimi Hendrix, Steve Howe, Tony Iommi, Ritchie Blackmore, Jimmy Page, Jeff Hanneman and Randy Rhoads. Kisser started performing in 1984 in a band called Esfinge, which he formed with school friends. The band played covers of heavy metal bands such as Black Sabbath, Ozzy Osbourne, Iron Maiden, Venom. Two years later the band renamed itself Pestilence and, in 1987, the songs on the demo were afterwards reused by Sepultura in their albums Schizophrenia and Beneath the Remains. Pestilence was, however, short-lived and ultimately split up, in 1987, Kisser met the members of Sepultura and went to see the band play live while he was on a vacation trip to Belo Horizonte. On the day of the concert he joined the band as a roadie for vocalist/guitarist Max Cavalera. He also jammed with the members during the intermissions, following the departure of original lead guitarist Jairo Guedes, Kisser auditioned for the position of lead guitarist. The same year he performed with the band for the first time in Caruaru, Pernambuco and his involvement in Sepultura helped shape the bands evolving sound. He brought new ideas and influences into Sepultura, on Schizophrenia and Beneath the Remains, Kisser co-wrote the lyrics with Max whereas the whole band wrote the music in tandem

9.
Guitar
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The guitar is a musical instrument classified as a fretted string instrument with anywhere from four to 18 strings, usually having six. The sound is projected either acoustically, using a wooden or plastic and wood box, or through electrical amplifier. It is typically played by strumming or plucking the strings with the fingers, the guitar is a type of chordophone, traditionally constructed from wood and strung with either gut, nylon or steel strings and distinguished from other chordophones by its construction and tuning. There are three types of modern acoustic guitar, the classical guitar, the steel-string acoustic guitar, and the archtop guitar. The tone of a guitar is produced by the strings vibration, amplified by the hollow body of the guitar. The term finger-picking can also refer to a tradition of folk, blues, bluegrass. The acoustic bass guitar is an instrument that is one octave below a regular guitar. Early amplified guitars employed a body, but a solid wood body was eventually found more suitable during the 1960s and 1970s. As with acoustic guitars, there are a number of types of guitars, including hollowbody guitars, archtop guitars and solid-body guitars. The electric guitar has had a influence on popular culture. The guitar is used in a variety of musical genres worldwide. It is recognized as an instrument in genres such as blues, bluegrass, country, flamenco, folk, jazz, jota, mariachi, metal, punk, reggae, rock, soul. The term is used to refer to a number of chordophones that were developed and used across Europe, beginning in the 12th century and, later, in the Americas. The modern word guitar, and its antecedents, has applied to a wide variety of chordophones since classical times. Many influences are cited as antecedents to the modern guitar, at least two instruments called guitars were in use in Spain by 1200, the guitarra latina and the so-called guitarra morisca. The guitarra morisca had a back, wide fingerboard. The guitarra Latina had a sound hole and a narrower neck. By the 14th century the qualifiers moresca or morisca and latina had been dropped, and it had six courses, lute-like tuning in fourths and a guitar-like body, although early representations reveal an instrument with a sharply cut waist

10.
Record producer
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A record producer or music producer oversees and manages the sound recording and production of a band or performers music, which may range from recording one song to recording a lengthy concept album. A producer has many roles during the recording process, the roles of a producer vary. The producer may perform these roles himself, or help select the engineer, the producer may also pay session musicians and engineers and ensure that the entire project is completed within the record companies budget. A record producer or music producer has a broad role in overseeing and managing the recording. Producers also often take on an entrepreneurial role, with responsibility for the budget, schedules, contracts. In the 2010s, the industry has two kinds of producers with different roles, executive producer and music producer. Executive producers oversee project finances while music producers oversee the process of recording songs or albums. In most cases the producer is also a competent arranger, composer. The producer will also liaise with the engineer who concentrates on the technical aspects of recording. Noted producer Phil Ek described his role as the person who creatively guides or directs the process of making a record, indeed, in Bollywood music, the designation actually is music director. The music producers job is to create, shape, and mold a piece of music, at the beginning of record industry, producer role was technically limited to record, in one shot, artists performing live. The role of producers changed progressively over the 1950s and 1960s due to technological developments, the development of multitrack recording caused a major change in the recording process. Before multitracking, all the elements of a song had to be performed simultaneously, all of these singers and musicians had to be assembled in a large studio and the performance had to be recorded. As well, for a song that used 20 instruments, it was no longer necessary to get all the players in the studio at the same time. Examples include the rock sound effects of the 1960s, e. g. playing back the sound of recorded instruments backwards or clanging the tape to produce unique sound effects. These new instruments were electric or electronic, and thus they used instrument amplifiers, new technologies like multitracking changed the goal of recording, A producer could blend together multiple takes and edit together different sections to create the desired sound. For example, in jazz fusion Bandleader-composer Miles Davis album Bitches Brew, producers like Phil Spector and George Martin were soon creating recordings that were, in practical terms, almost impossible to realise in live performance. Producers became creative figures in the studio, other examples of such engineers includes Joe Meek, Teo Macero, Brian Wilson, and Biddu

11.
Singing
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Singing is the act of producing musical sounds with the voice, and augments regular speech by the use of sustained tonality, rhythm, and a variety of vocal techniques. A person who sings is called a singer or vocalist, Singers perform music that can be sung with or without accompaniment by musical instruments. Singing is often done in an ensemble of musicians, such as a choir of singers or a band of instrumentalists, Singers may perform as soloists, or accompanied by anything from a single instrument up to a symphony orchestra or big band. Singing can be formal or informal, arranged or improvised and it may be done as a form of religious devotion, as a hobby, as a source of pleasure, comfort, or ritual, as part of music education, or as a profession. Excellence in singing requires time, dedication, instruction, and regular practice, if practice is done on a regular basis then the sounds can become more clear and strong. Professional singers usually build their careers around one specific genre, such as classical or rock. They typically take voice training provided by teachers or vocal coaches throughout their careers. Though these four mechanisms function independently, they are coordinated in the establishment of a vocal technique and are made to interact upon one another. During passive breathing, air is inhaled with the diaphragm while exhalation occurs without any effort, exhalation may be aided by the abdominal, internal intercostal and lower pelvis/pelvic muscles. Inhalation is aided by use of external intercostals, scalenes and sternocleidomastoid muscles, the pitch is altered with the vocal cords. With the lips closed, this is called humming, humans have vocal folds which can loosen, tighten, or change their thickness, and over which breath can be transferred at varying pressures. The shape of the chest and neck, the position of the tongue, any one of these actions results in a change in pitch, volume, timbre, or tone of the sound produced. Sound also resonates within different parts of the body and an individuals size, Singers can also learn to project sound in certain ways so that it resonates better within their vocal tract. This is known as vocal resonation, another major influence on vocal sound and production is the function of the larynx which people can manipulate in different ways to produce different sounds. These different kinds of function are described as different kinds of vocal registers. The primary method for singers to accomplish this is through the use of the Singers Formant and it has also been shown that a more powerful voice may be achieved with a fatter and fluid-like vocal fold mucosa. The more pliable the mucosa, the more efficient the transfer of energy from the airflow to the vocal folds, Vocal registration refers to the system of vocal registers within the voice. A register in the voice is a series of tones, produced in the same vibratory pattern of the vocal folds

12.
Soulfly
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Soulfly is a heavy metal band formed in 1997 and based in Phoenix, Arizona. The original lyrical content revolved around spirituality, political and religious themes, with later albums encompassing other themes including war, violence, aggression, slavery, hatred and anger. Soulfly is led by former Sepultura frontman Max Cavalera, who formed the band after he left the Brazilian group in 1996, to date the band has released ten studio albums, one tour EP, twenty-three singles, one video album, and twelve music videos. All of their first six studio albums debuted on the United States Billboard 200, with a position at number 32 for their second album. Soulfly has been certified gold by the Recording Industry Association of America, the band has gone through numerous line-up changes, with Cavalera being the only constant member. Cavalera was troubled during the recording of Soulflys first album, and on the website he said that he founded the band with the idea of combined sounds. As well as leaving Sepultura, one of the worlds most renowned thrash/groove metal bands, he had to deal with the death of his stepson, the self-titled debut album was released in April 1998, and reached number 79 on the Billboard 200. In addition to the band, which at the time consisted of Lúcio Maia on guitar, Cello Dias on bass. The album was recorded at Indigo Ranch Studios in Malibu, California and was overseen by producer Ross Robinson, in addition to fronting Soulfly, Cavalera also branched out into other areas not usually associated with heavy metal musicians. He became a speaker at conventions, appearing at CMJs New Music Marathon in New York and Hollands Crossing Border Festival. After recording the first album, Jackson Bandeira returned to Brazil with Nação Zumbi and was replaced by Logan Mader of Machine Head for the tour that followed. Soulfly played on the 1998 Ozzfest mainstage alongside Ozzy Osbourne, Megadeth, and Tool, after the world tour in support of Soulfly, Logan Mader was replaced by Mikey Doling who had just been displaced by the breakup of Snot. Joe Nunez, from Chicago, replaced Roy Mayorga on drums for Primitive, in addition, artwork was created by longtime Bob Marley artist Neville Garrick. The release of the album was followed by tours with the likes of Pantera, Morbid Angel. In late 2001, Joe Nunez left Soulfly to join Stripping the Pistol, Roy Mayorga departed from his band Medication to rejoin Soulfly for the recording of their third album. 3 was the first Soulfly album which was produced by Max Cavalera, other musicians performing on 3 included Cristian Machado of Ill Niño, and guitarist Wiley Arnet and drummer Greg Hall, and Maxs stepson Richie Cavalera. The album reached number 46 on the Billboard 200 in that year, after the release of 3 on June 25,2002, Soulfly toured throughout Europe and North America with bands such as Slayer, In Flames, God Forbid, and Will Haven. Cavalera recruited a new lineup in October 2003 for the recording of Soulflys Prophecy album, Joe Nunez returned on drums with New Jersey native Marc Rizzo, formerly of Ill Niño, on guitar and Kentucky native Bobby Burns, formerly of Primer 55, on bass